Gridded Surface Subsurface Hydrologic Analysis
From Gsshawiki
Welcome to the GSSHA™ Wiki!
The GSSHA™ Wiki is the best source for up to date information on the GSSHA™ model. In the last two to three years many new features have been added to the GSSHA™ model. Many of these features were developed or released after the publication of the primer and manual. One of the main purposes of the GSSHA™ Wiki is to keep the documentation up to date with the model development. Currently we are updating all the documentation and tutorials for the model on this site, such that the information on the site changes daily. Once the overhaul of the documents is complete, modifications will be made to the Wiki to keep up with further advances and releases.
If you are an experienced GSSHA™ user you may still find some model features missing from the site. This site will cover only release versions of the code. Currently we are on release version 4.0. Release version 3.0b is supported by WMS 8.1, which can be downloaded below (under the Tutorials section on this page).
As many users may be aware, support of features in WMS typically lags behind development of GSSHA™. This is necessary in that we must settle on final GSSHA™ inputs and outputs before we ask them to be added to WMS. While we strongly encourage GSSHA™ users to use WMS for pre and post processing, users should be aware that many GSSHA™ models, especially GSSHA™ models with advanced features, must be at least partially developed outside of WMS. In addition to WMS, we have developed several utilities to assist in the development of GSSHA™ inputs. These utilities already are or will be added to the site as we get to them. The documents provided here describe the actual inputs to the GSSHA™ model and should be consulted when there are questions about inputs, whether developed from WMS or by other means.
Users and potential users should be aware that, as of Jan 30, 2009, the information in the manual on sediment transport modeling is outdated and is in the process of being updated. Information in the manual on hydraulic structures and reservoirs is also incomplete and being updated. This site is frequently updated, so check back often for additional improvements, updates, and resources.
GSSHA™ is developed and maintained by the US Army Engineer Research and Development Center (ERDC) Hydrologic Modeling Branch, in the Coastal and Hydraulics Laboratory, see:
If you are not familiar with GSSHA™ see the overview tab on the top left hand side of your screen to get a feel for what GSSHA™ is and what applications it might be appropriate for. For more information about the GSSHA™ model, it's formulation, and it's applicability, contact me at charles.w.downer@usace.army.mil. For more information about WMS and using WMS to construct a GSSHA model and visualize results, contact Aquaveo at:
Chuck
Contents |
GSSHA™ Software Primer
This document is a primer for use of the Watershed Modeling System (WMS) interface with the physically based, distributed-parameter hydrologic model Gridded Surface Subsurface Hydrologic Analysis (GSSHA™). The primary purpose of this primer is to describe how the WMS interface is used to develop inputs and analyze output from the GSSHA™ model. This primer also provides a brief description of the GSSHA™ model, including the overall model formulation, processes that can be simulated, and input formats for files not supported by WMS.
GSSHA™ User's Manual
This document is the detailed user manual for GSSHA™.
GSSHA™ Tutorials
Note: GSSHA currently supports file names (including path and file name) with lengths less than or equal to 128 characters. If GSSHA tutorial files are placed in a directory with a path that causes the combined path and file name to exceed 128 characters, then GSSHA will not run.
GSSHA™ Park City June 2008 training tutorials and data files (ZIP file, 65.4 MB)
GSSHA™ and HMS MODClark tutorials distributed with WMS (volume 6, PDF file, 2.5 MB)
WMS 8.1-full download (installation EXE file, 227 MB)
WMS 8.1-tutorial data files only (installation EXE file, 138 MB)
WMS 8.1-tutorial and other documentation only (installation EXE file, 30 MB)
WMS 8.1-software update only (installation EXE file, 51 MB)
Utility Programs
Obtaining Data
This section gives sample values for many of the parameters used in GSSHA™.
GSSHA™ Bibliography
Reports or papers where GSSHA™ was used.
Test Cases
Example projects: 10x10 Simulations, Project Simulations.
Wiki Editing Guidelines
Guidelines on how to edit this Wiki
GSSHA™ Download
Current release and research versions of the code can be downloaded here along with tutorial data.
